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Note 4.0 LSI-11/73 Upgrade Paths No replies
JAWS::KAISER 300 lines 25-MAR-1985 09:15
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+---------------+ +-----------------+
| d i g i t a l | | uNOTE #004 |
+---------------+ +-----------------+
+----------------------------------------------------+-----------------+
| Title: LSI-11/73 Upgrade Paths | Date: 28-NOV-83 |
+----------------------------------------------------+-----------------+
| Originator: Mike Collins | Page 1 of 6 |
+----------------------------------------------------+-----------------+
With the announcement of the KDJ11-A CPU module, there will be numerous
questions regarding configuring the module into a current system. The
purpose of this MicroNote is to address all possible configuration
upgrade paths (within reason).
Generally a KDJ11-A will be installed as an upgrade to a system built
from components or DEC packaged system.
In the case of a component upgrade it is assumed the processor is a
KDF11-A and the boot mechanism is an MXV11-A with the MXV11-A2 Boot
ROMs.
System upgrades fall into 2 categories:
1. KDF11-A based systems and
2. KDF11-B based systems (11/23+ and Micro/PDP-11)
There are 3 issues which must be addressed when considering a KDJ11-A
upgrade. They are:
1. The Boot mechanism
2. 18 or 22 bit system
3. Single or multiple box system
NOTE
1. In the following upgrade scenarios, the systems have
been labeled as being Field Serviceable or not. A
system which is Field Serviceable has a bootstrap which
meets Field Service requirements. The requirement is
that the bootstrap must execute an 11/73 cache memory
diagnostic on power-up. There is no guarantee that the
overall system will be Field Serviceable or that it will
be FCC compliant.
2. Systems using CPU's other than the KDF11-A or
KDF11-B (i.e. 11/03 systems) are not considered for
upgrade.
CAUTION: It is recommended that the AC and DC loading for the final
configuration be checked for conformance with the Q-Bus loading rules.
It is also recommended to check for overloading on the +5 Volt and +12
Volt Power Supplies.
Page 2
For each system upgrade the following parameters are listed for both the
'Current' system and the 'Upgraded' system:
1. CPU
2. Boot Mechanism
3. System Size
4. Number of Boxes
5. Field Serviceable or not
6. Special Conditions
COMPONENT UPGRADE PATHS:
-----------------------
1. Current System Upgrade 1
-------------- ---------
KDF11-A KDJ11-A
MXV11-A MXV11-B/MRV11-D with MXV11-B2 Boot ROMs
18 Bit System 18 Bit System
1 Box 1 Box
Field Serviceable
Upgrade 2
---------
KDJ11-A
MXV11-A
18 Bit System
1 Box
NOT Field Serviceable
2. Current System Upgrade
-------------- -------
KDF11-A See upgrades for category 1
MXV11-A
18 Bit System
More than 1 box
3. Current System Upgrade
-------------- -------
KDF11-A See upgrades for category 1
MXV11-A (Memory Disabled)
22 Bit System
1 Box
4. Current System Upgrade
-------------- -------
KDF11-A Not currently configureable with
MXV11-A (Memory Disabled) DEC equipment.
22 Bit System
More than 1 box
This system is not currently configureable with DEC equipment.
Page 3
PDP 11/23A SYSTEM UPGRADE PATHS:
-------------------------------
5. Current System Upgrade 1
-------------- ---------
KDF11-A KDJ11-A
BDV11 MXV11-B/MRV11-D with MXV11-B2 Boot ROMs
18 Bit System 18 Bit System
1 Box 1 Box
Field Serviceable
Upgrade 2
---------
KDJ11-A
BDV11
18 Bit System
1 Box
NOT Field Serviceable
Disable the Processor and Memory tests
and also the BEVNT register on the
BDV11.
Upgrade 3
---------
KDJ11-A
MXV11-A (with MXV11-A2 boot ROMs)
18 Bit System
1 Box System
NOT Field Serviceable
Check AC loading since termination was
removed when the BDV11 was removed from
the system.
6. Current System Upgrade 1
-------------- ---------
KDF11-A KDJ11-A
BDV11 MXV11-B/MRV11-D with MXV11-B2 Boot ROMs
18 Bit System 18 Bit System
More than 1 Box More than 1 box
Field Serviceable
Use BCV1A and BCV1B expansion cables.
Upgrade 2
---------
KDJ11-A
BDV11
18 Bit System
More than 1 Box
NOT Field Serviceable
Disable the Processor and Memory tests
and also the BEVNT register on the
BDV11.
Use BCV1B cable set between 1st and 2nd
box and the BCV1A cable set between the
2nd and 3rd box. Note: If in a 3 box
system the expansion cable set lengths
must differ by 4 ft.
Page 4
Upgrade 3
---------
KDJ11-A
MXV11-A (with MXV11-A2 boot ROMs)
18 Bit System
More than 1 Box
NOT Field Serviceable
Use BCV1A and BCV1B expansion cables.
7. Current System
--------------
KDF11-A
BDV11
22 Bit System
1 Box
Systems with this configuration were never shipped by DEC.
PDP 11/23 PLUS SYSTEM UPGRADE PATHS:
-----------------------------------
8. Current System Upgrade 1
-------------- ---------
KDF11-B KDJ11-A
Boot is on CPU MXV11-B/MRV11-D with MXV11-B2 Boot ROMs
22 Bit System 22 Bit System
1 Box System 1 Box
Field Serviceable
Upgrade 2
---------
KDJ11-A
MXV11-A (with MXV11-A2 boot ROMs)
22 Bit System
1 Box
NOT Field Serviceable
Must disable RAM on MXV11-A.
Upgrade 3
---------
KDJ11-A
BDV11
22 Bit System
1 Box System
NOT Field Serviceable
Must have BDV11 ECO M8012-ML005
installed. Disable the Processor and
Memory tests and also the BEVNT register
on the BDV11.
Page 5
9. Current System Upgrade 1
-------------- ---------
KDF11-B Not currently configureable with
Boot is on CPU DEC equipment.
22 Bit System
More than 1 Box
Upgrade 2
---------
Not currently configureable with
DEC equipment.
Upgrade 3
---------
Not currently configureable with
DEC equipment.
MICRO/PDP-11 SYSTEM UPGRADE PATHS:
---------------------------------
10. Current System Upgrade
-------------- -------
Micro/PDP-11 Same as 11/23+ rules, see category
KDF11-BE 8, Upgrade 1. Upgrades 2 and
Boot is on CPU 3 are not recommended since the
22 Bit System MXV11-A and BDV11 cannot boot the
1 Box system 5 1/4" media in the Micro/PDP-11.
11. Current System Upgrade
-------------- -------
Micro/PDP-11 Same as 11/23+ rules, see upgrades
KDF11-BE for category 9.
Boot is on CPU
22 Bit System
More than 1 box
NOTE
It is not currently possible to expand out of the
Micro/PDP-11 while maintaining FCC compliance.
11/23 PLUS and Micro/PDP-11 system upgrades will require
an EXTRA backplane slot to accomodate the additional
boot module (i.e. MXV11-A,-B or BDV11).
Page 6
11/23-S SYSTEM UPGRADE SOLUTIONS:
--------------------------------
12. Current System Upgrade
-------------- -------
KDF11-BA See upgrades for category 5.
Boot is on CPU
18 Bit System
1 Box system
13. Current System Upgrade
-------------- -------
KDF11-BA See upgrades for category 6.
Boot is on CPU
18 Bit system
More than 1 box
NOTE
It is not currently possible to expand out of the
11/23-S while maintaining FCC compliance.
